2024/09/15 by Ajay Kumar Yadav, Yadav, Ajay Kumar, Manas Kumar Mohapatra +3
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions
paper · pdf · doi:10.48550/arxiv.2409.09737
openalex publication_date 2024/09/15 · openalex created_date 2024/10/24 · openalex updated_date 2026/07/28
Measurements from the LHCb experiment and B factories have revealed several discrepancies in angular observables of rare semileptonic B decays involving the quark-level transition b → s ℓ+ ℓ-. In this work, we conduct a model-independent comparative analysis of the rare semileptonic decays of baryons Λb, Σb and Ξb, exploring various new physics scenarios. Our analysis includes predictions for branching ratios and angular observables, including forward-backward asymmetry, longitudinal polarization fractions, and lepton flavor universality ratios, both within the Standard Model and across six distinct new physics scenarios. Notably, we find that certain new physics scenarios significantly affect the observables in the (Λb, Σb, Ξb) → (Λ, Σ, Ξ) μ+ μ- processes.